CN212775244U - Device for controlling torque and rotating speed stability of engine - Google Patents

Device for controlling torque and rotating speed stability of engine Download PDF

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Publication number
CN212775244U
CN212775244U CN202021397780.5U CN202021397780U CN212775244U CN 212775244 U CN212775244 U CN 212775244U CN 202021397780 U CN202021397780 U CN 202021397780U CN 212775244 U CN212775244 U CN 212775244U
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China
Prior art keywords
cavity
driven disc
vibration damping
mandrel
ring vibration
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CN202021397780.5U
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Chinese (zh)
Inventor
任立志
吴卫星
夏祖国
李建垒
徐东阳
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Dongfeng Off Road Vehicle Co Ltd
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Dongfeng Off Road Vehicle Co Ltd
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Abstract

The utility model discloses a device for controlling the torque and the rotating speed of an engine to be stable, which comprises a hollow shell connected with the output end of the engine and a driven disc connected with a subordinate transmission device; a first clapboard which divides the hollow shell into an inner cavity and an outer cavity and a second clapboard which divides the outer cavity into a plurality of small cavities are arranged in the hollow shell; two ends of the second partition board are respectively connected with the outer wall of the inner chamber and the inner wall of the outer chamber; an inner ring vibration damping body is arranged in the inner cavity, and an outer ring vibration damping body is arranged in each small cavity of the outer cavity; the driven disc comprises a driven disc body, and the driven disc body is coaxially provided with a mandrel and a boss, wherein the mandrel can be contained in the inner ring vibration damping body, and the boss can be contained in the outer ring vibration damping body; the driven disc is provided with a coaxial through hole. Two sets of damping mechanisms of outer lane in the design, the utility model discloses can replace the clutch to use on amphibious car, have advantages such as small, that weight is little, the vibration is little, the noise is little, the transmission is reliable.

Description

Device for controlling torque and rotating speed stability of engine
Technical Field
The utility model relates to a technical field of making an uproar falls in the damping is a power device technique of making an uproar falls, specifically indicates a stable device of control engine moment of torsion rotational speed.
Background
An elastic coupling device is usually required to be arranged between the engine and the lower-stage transmission device, and is used for transmitting torque, simultaneously, torque impact and vibration are alleviated through an elastic body, the stability of torque rotating speed is controlled, and excessive vibration and noise are avoided. The elastic coupling device is usually integrated with a clutch, and the clutch is provided with a driving disc, a driven disc, a hydraulic pump, a pedal plate and other mechanisms, so that the system is heavy and large in size, and is not beneficial to arrangement and weight reduction of the whole vehicle. The common torsional damper is arranged on a clutch driven disc, and the impact is alleviated by the compression of a metal spring, and the metal spring is made of undamped materials and does not have the capacity of absorbing high-frequency vibration. Therefore, the vibration of the engine can still be transmitted to the vehicle body through the clutch, resulting in an adverse NVH problem.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the background art, the utility model aims to provide a small, light in weight, the vibration is little, the noise is little, the reliable stable device of control engine torque rotational speed of transmission.
In order to achieve the above object, the utility model relates to a control engine torque and speed of rotation stable device, its characterized in that: the device comprises a hollow shell connected with the output end of an engine and a driven disc connected with a lower-stage transmission device; a first partition board for dividing the hollow shell into an inner cavity and an outer cavity and a second partition board for dividing the outer cavity into a plurality of small cavities are arranged in the hollow shell; two ends of the second partition plate are respectively connected with the outer wall of the inner chamber and the inner wall of the outer chamber; an inner ring vibration damping body is arranged in the inner cavity, and an outer ring vibration damping body is arranged in each small cavity of the outer cavity; the driven disc comprises a driven disc body, and the driven disc body is coaxially provided with a mandrel and a boss, wherein the mandrel can be contained in the inner ring vibration damping body, and the boss can be contained in the outer ring vibration damping body; and the driven disc is provided with a coaxial through hole.
Preferably, the inner ring vibration reduction body is arranged between the outer wall of the mandrel and the inner wall of the inner cavity.
Preferably, the cross section of the inner chamber and the cross section of the mandrel are both rectangular.
Further preferably, the inner ring vibration damping body is composed of a plurality of inner ring units arranged at intervals.
Still further preferably, the cross section of the inner ring unit is triangular.
Preferably, a second limiting plate connected with one end face of the inner chamber and a third limiting plate connected with the mandrel are further arranged in the inner chamber; the inner ring vibration reduction body is positioned between the second limiting plate and the third limiting plate. Thus, the axial play of the driven plate is restricted by the third stopper plate.
Still further preferably, the length of a diagonal line of the third limiting plate is greater than the length of the side of the inner chamber is greater than the length of the side of the mandrel.
Preferably, one end face of the small cavity is provided with a first limiting plate, and the outer ring vibration damping body is located between the first limiting plate and the driven disc body.
Preferably, the outer ring vibration damping body is composed of two outer ring units, and the boss is located between the two outer ring units.
Further preferably, a gap is provided between the boss and the outer ring unit.
Further preferably, the outer ring unit side wall is provided with a positioning groove, and the inner wall of the outer chamber is provided with a positioning protrusion matched with the positioning groove. Thus, the positioning groove and the positioning protrusion are matched to facilitate installation of the outer ring unit, and circumferential movement of the outer ring unit is prevented.
The utility model has the advantages that: the inner ring unit eliminates torsional vibration through friction between the square surface of the square mandrel and the surface of the rubber body, transmits torque through extrusion between the edge of the square mandrel and the rubber body, and is used for transmission and vibration reduction under the working conditions of idle speed and small torque of an engine. The outer ring unit is fixed in the outer cavity by 8 special-shaped rubber elements and is used for transmission and vibration reduction under the working condition of large torque output of the engine. The inner unit and the outer unit both adopt rubber elements and have damping, while the prior art adopts a spring as a vibration damping element and does not have damping. The utility model discloses possess the failure protect function, after inside and outside unit elastomer became invalid promptly, power was incessant, and the vehicle can travel. The inner unit elastic body and the outer unit elastic body are limited to move in the cavity, so that the movement displacement of the inner damping body and the outer damping body can be limited, the vibration body is effectively prevented from being excessively compressed or stretched, and the durability and reliability of the vibration body are improved. The utility model discloses the cavity casing has the flange face, is equipped with the bolt hole on the flange face, is equipped with the flower on the driven plate and builds the hole. Has the advantages of convenient assembly and disassembly, small volume, light weight, low cost and the like.
The utility model designs two sets of damping mechanisms of interior outer lane. Different from current torsional damper, the utility model discloses a torsional vibration is eliminated with the friction on inside and outside damping body surface to the square surface of square dabber, comes the transmission moment of torsion through the edge of square dabber and the extrusion of the inside and outside damping body. The vibration energy is consumed just by the friction acting and the elastic damping of the rubber, so that the vibration amplitude is reduced. The utility model discloses can replace the clutch and use on amphibious car, have advantages such as small, weight is little, the vibration is little, the noise is little, the transmission is reliable.
Drawings
FIG. 1 is a schematic view of the three-dimensional explosion of the present invention
FIG. 2 is a perspective view of the present invention
FIG. 3 is a schematic perspective view of the present invention
FIG. 4 is a schematic front view of the present invention
FIG. 5 is a schematic sectional view A-A of FIG. 4
Fig. 6 is a schematic top view of the present invention
FIG. 7 is a schematic sectional view B-B of FIG. 6
FIG. 8 is a schematic perspective view of the hollow housing of the present invention
FIG. 9 is a schematic perspective view of the hollow housing of the present invention
In the figure: the hollow shell 1 (inner chamber 1.1, outer chamber 1.2, small cavity 1.21, first partition plate 1.3, second partition plate 1.4, first limiting plate 1.5, second limiting plate 1.6, third limiting plate 1.7 positioning bulge 1.8), driven disc 2 (driven disc body 2.1, mandrel 2.2, boss 2.3, through hole 2.4), inner ring vibration damping body 3 (inner ring unit 3.1), outer ring vibration damping body 4 (outer ring unit 4.1, gap 4.2, positioning groove 4.3).
Detailed Description
The technical solution (including the preferred technical solution) of the present invention is further described in detail by referring to fig. 1 to 9 and illustrating some alternative embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
As shown in fig. 1 to 3, the utility model relates to a control stable device of engine torque rotational speed, including cavity casing 1, driven plate 2, the inner circle damping body 3, the outer lane damping body 4, third limiting plate 1.7. The output end of the engine is connected with the hollow shell 1, and the lower-stage transmission device is connected with the driven disc 2.
As shown in fig. 1 to 9, a first partition plate 1.3 for dividing the hollow shell 1 into an inner chamber 1.1 and an outer chamber 1.2 and a second partition plate 1.4 for dividing the outer chamber into a plurality of small chambers 1.21 are arranged in the hollow shell 1; two ends of the second partition plate 1.4 are respectively connected with the outer wall of the inner chamber 1.1 and the inner wall of the outer chamber 1.2; an inner ring vibration reduction body 3 is arranged in the inner cavity 1.1, and an outer ring vibration reduction body 4 is arranged in each small cavity 1.21 of the outer cavity 1.2; the driven disc 2 comprises a driven disc body 2.1, and the driven disc body 2.1 is coaxially provided with a mandrel 2.2 which can be contained in the inner ring vibration damping body 3 and a boss 2.3 which can be contained in the outer ring vibration damping body 4; the driven disc 2 is provided with a coaxial through hole 2.4. The inner ring vibration reduction body 3 is arranged between the outer wall of the mandrel 2.4 and the inner wall of the inner chamber 1.1.
Preferably, the cross section of the inner chamber 3 and the cross section of the mandrel 2.2 are both rectangular.
Preferably, the inner ring vibration damping body 3 is composed of a plurality of inner ring units 3.1 arranged at intervals. The cross section of the inner ring unit 3.1 is triangular. In the embodiment, four inner ring units 3.1 uniformly distributed at four corners of the inner cavity 1.1 are arranged, the cross section of each inner ring unit 3.1 is a right triangle, and the surface where the hypotenuse is located is in contact with the outer side wall of the mandrel 2.2.
Preferably, a second limiting plate 1.6 connected with one end face of the inner chamber 1.1 and a third limiting plate 1.7 connected with the mandrel 2.2 are further arranged in the inner chamber 1.1; the inner ring vibration reduction body 3 is positioned between the second limiting plate 1.6 and the third limiting plate 1.7, so that the axial movement of the driven disc is limited through the third limiting plate 1.7.
More preferably, the length of the diagonal line of the third limiting plate 1.7 is greater than that of the inner chamber 1.1 and greater than that of the mandrel 2.2. In this embodiment, the length of the side of the inner chamber 1.1 is greater than the length of the diagonal of the mandrel 2.2.
The hollow shell 1, the first partition plate 1.3, the second partition plate 1.4, the first limiting plate and the second limiting plate 1.6 are of an integrated structure.
Preferably, one end face of the small cavity 1.21 is provided with a first limiting plate 1.5, and the outer ring vibration damping body 4 is located between the first limiting plate 1.5 and the driven disc body 2.1.
Preferably, the outer ring damper 4 is composed of two outer ring units 4.1, and the boss 2.3 is located between the two outer ring units 4.1. A gap 4.2 is arranged between the boss 2.3 and the outer ring unit 4.1.
Further preferably, outer lane unit 4.1 lateral wall is equipped with constant head tank 4.3, be equipped with on the outer chamber 1.2 inner wall with the protruding 1.8 in location of constant head tank 4.3 adaptation, like this, when the cooperation through constant head tank 4.3 and the protruding 1.8 in location makes things convenient for outer lane unit 4.1 to install, also prevents outer lane unit 4.1 circumferential movement.
The inner ring vibration reduction body 3 and the outer ring vibration reduction body 4 are uniformly distributed on the circumference.
The hollow shell 1 and the driven disc 2 are made of metal. The inner ring vibration damping body 3 and the outer ring vibration damping body 4 are made of rubber.
The mandrel 2.2 and the inner ring vibration reduction body 3 have mutual friction and extrusion functions, and play a role in primary vibration reduction and transmission; bosses 2.3 evenly distributed on the driven disc 2 in the circumferential direction and an outer ring vibration damping body 4 mutually twist, and have secondary vibration damping and transmission functions.
When the engine runs, the engine flywheel drives the hollow shell 1 to rotate, then the driven disc 2 is driven to rotate by the inner ring vibration damping body 3 and the outer ring vibration damping body 4 which are fixed on the hollow shell 1, and the driven disc 2 inputs power to the lower-level transmission device. The inner ring vibration damping body 3 and the outer ring vibration damping body 4 have set torsional rigidity, the rubber body is subjected to torque to generate elastic deformation, and the elastic deformation can reduce adverse vibration and noise caused by torque fluctuation.
It will be understood by those skilled in the art that the foregoing is merely exemplary of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, combinations, alternatives, and equivalents falling within the spirit and scope of the invention.

Claims (10)

1. An apparatus for controlling torque and speed stabilization of an engine, characterized in that: the device comprises a hollow shell connected with the output end of an engine and a driven disc connected with a lower-stage transmission device; a first partition board for dividing the hollow shell into an inner cavity and an outer cavity and a second partition board for dividing the outer cavity into a plurality of small cavities are arranged in the hollow shell; two ends of the second partition plate are respectively connected with the outer wall of the inner chamber and the inner wall of the outer chamber; an inner ring vibration damping body is arranged in the inner cavity, and an outer ring vibration damping body is arranged in each small cavity of the outer cavity; the driven disc comprises a driven disc body, and the driven disc body is coaxially provided with a mandrel and a boss, wherein the mandrel can be contained in the inner ring vibration damping body, and the boss can be contained in the outer ring vibration damping body; and the driven disc is provided with a coaxial through hole.
2. The apparatus for controlling engine torque speed stabilization according to claim 1, characterized in that: the inner ring vibration reduction body is arranged between the outer wall of the mandrel and the inner wall of the inner cavity.
3. The apparatus for controlling engine torque rotational speed stabilization according to claim 1 or 2, characterized in that: the cross sections of the inner chamber and the mandrel are rectangular.
4. The apparatus for controlling engine torque speed stabilization according to claim 3, characterized in that: the inner ring vibration reduction body is composed of a plurality of inner ring units arranged at intervals.
5. The apparatus for controlling engine torque speed stabilization according to claim 4, characterized in that: the cross section of the inner ring unit is triangular.
6. The apparatus for controlling engine torque speed stabilization according to claim 3, characterized in that: a second limiting plate connected with one end face of the inner chamber and a third limiting plate connected with the mandrel are further arranged in the inner chamber; the inner ring vibration reduction body is positioned between the second limiting plate and the third limiting plate.
7. The apparatus for controlling engine torque speed stabilization according to claim 6, characterized in that: the diagonal length of the third limiting plate is larger than the side length of the inner chamber and larger than the side length of the mandrel.
8. The apparatus for controlling engine torque speed stabilization according to claim 1, characterized in that: one end face of the small cavity is provided with a first limiting plate, and the outer ring vibration damping body is located between the first limiting plate and the driven disc body.
9. The apparatus for controlling engine torque rotational speed stabilization according to claim 1 or 8, characterized in that: the outer ring vibration damping body is composed of two outer ring units, and the boss is located between the two outer ring units.
10. The apparatus for controlling engine torque speed stabilization according to claim 9, characterized in that: and a gap is formed between the boss and the outer ring unit.
CN202021397780.5U 2020-07-15 2020-07-15 Device for controlling torque and rotating speed stability of engine Active CN212775244U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202021397780.5U CN212775244U (en) 2020-07-15 2020-07-15 Device for controlling torque and rotating speed stability of engine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202021397780.5U CN212775244U (en) 2020-07-15 2020-07-15 Device for controlling torque and rotating speed stability of engine

Publications (1)

Publication Number Publication Date
CN212775244U true CN212775244U (en) 2021-03-23

Family

ID=75078005

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202021397780.5U Active CN212775244U (en) 2020-07-15 2020-07-15 Device for controlling torque and rotating speed stability of engine

Country Status (1)

Country Link
CN (1) CN212775244U (en)

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